Mold.



No. 813,439. PATBNTED PEB. 27. 1906.- G. A. LANDON.

MOLD.

APPLICATION FILED MAR-B, 1905.

2 SHEETS-SHEET 2,

W ancianas 'UNITED srnfrlss PATENT cierren.

CHARLES A. LANDON, OF FINDLAY, OHIO, ASSIGNOlt THE LANDON CEMENT PRODUCT COMPANY, OF TIFFIN, OHIO.

MOLD.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed March 8, 1905. Serial No. 248.988.

'simple in its nature, will be rigid to wit-listand all pressure and strains incident to the manufacture of vaults, and can be conveniently collapsed, dismembered, and disengaged from the molded article without either injury to itself or to such article. Tu like manner the mold can be properly and readily set up in-order to receive and shape the material into the vault.

A further and important object is to provide a core with4 an open bottom and to employ means for preventing the green cement being forced into the same under the tamping pressure applied to the walls of the vault.

The preferred form of construction is illustrated 1n the accompanying drawings, where- Figi 6 is a detail sectional view on the line 6 6 of ig. 1.

Figure 1 is a erspective view of the mold when set up. `ig. 2 is a horizontal sectional view therethrough. Fig. 3 is a vertical longitudjnal sectional view. Fig. 4 is a crossseetional view. Fig. 5 is a detail sectional view through one of the corners of the core.

Similar reference-numerals designate corresponding parts in all the figures of the drawmus.

2ln the embodiment illustrated a base or bottom wall 7 is employed, which is preferably ilat. On the margin of this wall are placed side and end strips 8 and 9, the ends of the latter abutting against the side edges at the ends of the former. tained in place by means of holding-strips 10 located longitudinally upon the ends of the strips 8. These holding-strips 10 are preferably each hinged or pivoted to one of the side strips, as shown at 11 and are connected to the strips beneath them and to the base or bottom wall by means of detachable headed pins 12, extending downwardly through the The strips are 1nain'- holding-strips, the end and side strips, and the base, as shown in Fig. 6.

Detachably-associated outer walls are employed, consisting of two side walls 13 and two end walls 14. The side walls 13 rest upon the side strips 8 with their inner faces located in substantial alinement with the inner edges of said strips, the ends of the side walls abutting against the ends of the holdingstrips 10, which are cut away, as shown at 15, to receive the same. The end walls 14 are fitted between the side walls and are retained against outward movement by the cleats 16, secured to the inner faces of the ends of the side walls. Said end walls are, moreover, held against inward movement by means of lrooks 17, secured thereto, and engaging suit'- able eyes 18, fastened to the ends of the side walls. As shown in Fig. 3, the end walls 14 rest upon the end strips 9, inside the holdingstrips, and their inner faces are flush with the inner edges of said end strips. A core having an open bottom and top is employed, also comprising side and end walls 19 and 20, each of the end walls being rigidly aflixed to one of the side walls at substantially right angles thereto.l f

The free end of each end wall is spaced from the adjacent free end of the other side wall, and said spaced ends are beveled, as shown at 21, the beveled faces being located in substantially the same plane. Cornerpieces 22 bridge the spaces between the ends and have flat rear faces that rest against the beveled faces 2l, the outer faces of said corner-pieces being respectively in line with the outer faces of the said end walls. These corner-pieces are held in place by clamps, compri-sing plates 23, bearing against strips 24,. secured to the inner sides of the walls 19 and 20, and reinforcing the beveled ends thereof. Holding-bolts 25, suitably secured to the cornerpieces, pass through thevplates 23 and have nuts threaded thereon and bearmg @fr against the plates.

By reference to Figs. 3 and 4 1t will be noted that the lower edges of the core-walls are in substantial alinement with the upper faces of the side and end strips 8 and 9 and are thus spaced from the base or bottom wall 7. Furthermore, they are provided at their lower edges with mwardly-extendingfootstrips 25, which strips not only reinforce the walls, but also serve to prevent the eXuda- IOO tion of cement beneath the same into the interior .of the core-a very important feature in the mold. structure. In other words, the said foot-strips a help to resist the green cement from being pressed upward inside the core when the sides of the vault are being molded by tamping the cement and pressing it downward. In order to secure the core in osition and rigidly maintain the same in ed relation with respect to the outer walls, tie-bolts 26 are employed, which pass lthrough the side walls 13 and 19 and also through spacing-sleeves 27, interposed between said walls. These walls are furthermore suitably reinforced `by cleats 28, through which the tie-bolts ass. In manufacturing a vault in this mdld the side and end strips 8 and 9 are first placed in position and secured by the holding-strips 10 and pins 12. Then a layer of cement is placed upon the base or bottom wall and the frame to be embedded in the article is arranged upon this layer. Another layer is then superposed upon the bottom portion of the frame and the first layer, the latter layer being made flush with the tops of the strips 8 and 9. The outer Walls 13 and 14 are afterward placed in position, as is also the core, the parts being entirely assembled, as shown in Fig. 1. The spaces between the side and end walls are t ereupon filled with the material, thus forming the side walls of the vault. After the material has sufficiently set it will be apparent that by releasing the corner-pieces the core may be readily collapsed and thewalls thereof dise (raged from the inner faces of the vault-Wa ls, the tie-bolts having first been removed. Furthermore, by unhooking the end walls from the side walls the outer walls of the mold can also be disengaged from the vault and the strips removed, thus leaving said vault supported on the base or bottom wall. The simplicity of this structure will be apparent. The parts are thoroughly braced and connected to withstand the pressure due to tamping the material, and the mold can be readily set up and dismembered without material danger of injuring the article made therein.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art without further description, and it will be apparent that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the s irit or sacrificing any of the advantages o the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a mold of the character described,

the combination with outside walls, of sepa- 6 5 rate core-walls having their adjacent ends spaced apart and beveled, the beveled faces being located. in substantially the same plane, a corner-piece bridging the space between the ends of the walls and having its rear face bearing against the ends of the beveled faces, and a clamping device engaging the cornerpiece and the sides of the core-walls opposite tothe beveled faces.

2. In a mold of the character described, the combination with spaced side walls, of end walls angularly dis osed with respect thereto, each of said endp walls bein rigidly secured at one end to one of the si e walls, the other end of the end walls being s aced from the adjacent end of the side wa and said adjacent ends being correspondingly beveled, corner-pieces bridging the spaces between said spaced ends and having their rear side faces bearing against the beveled faces thereof, and clamping devices engaging the corner-pieces and the sides of the core-walls opposite to the beveled faces.

3. In a mold of the character described, the combination with a bottom wall, of side walls detachably mounted thereon, upright spaced core-walls located inside the sidewalls nd spaced therefrom, and separate bolts connecting and passing through the adjacent corresponding core and side walls to support the former with their lower edges above the bottom wall, said bolts having heads engaging the outer sides of said walls to prevent the spreading of said corresponding adjacent walls.

4. In a mold of the character described, the combination with a bottom wall, of side walls detachably mounted thereon and having reinforcing-strips, core-walls located inside the side walls and spaced therefrom, said core walls having reinforcing strips, bolts passing through the adjacent side and core walls and through the reinforcing-strips thereof, said bolts having heads and nuts that bear against the inner and outer sides respectively of the strips of the core and side walls, and sleeves interposed between the walls and located on the bolts.

5. In a mold of the character described, the combination wi t l ia bas e o i; ot of strips mounted thereon, means detachably connecting the base andstrips to hold the latter in position on said base and permit the removal thereof, side walls mounted on the strips, and core-walls located inside the side walls and spaced therefrom, said core-walls having their lower edges spaced from the strips and from the bottom.

6. In a mold of the character described,

'the combination with a base or bottom wall,

of strips detachably mounted upon the margins thereof, outer walls mounted on the strips and having their inner faces in substantially the same plane with the inner edges of the strips on which they rest, and core-walls located inside the outer walls and spaced IOC arranged on certain of said strips and overlapping the others, fastening devices passing through .the holding-stri s, the side and end strips and engaging the ase or bottom wall, outer walls located on the side and end strips, and core-walls arranged inside the outer walls in spaced relation thereto, said core-walls being also disposed in spaced relation to the strips and to the base or bottom wall.

8. `In a mold of the character described, the combination with a base or bottom wall, of abutted side and end strips located on the margins of the base or bottom wall, holdingstri s arranged upon the end strips and eX- tening over the side strips, fastening devices passing through said strips and engaging the ase or bottom wall, side walls located upon the side strips and having their inner faces in substantially the same lane as the inner edges of said side stri s, etachable end walls fitted between the si ewalls and resting upon the end strips inside the holding-strips, devices for securing the end walls to the side Mb. nr

walls, core-walls arranged inside the end and side walls, detachable connections between certain of the core-walls to permit the collapsing of the core, the lower edges of said core-walls being substantially in the same plane as the upper faces of the stri s and being spaced above the bottom wal and devices detachably connecting the side and core walls and bridging the spaces between the same.

9. In a mold of the character described, the combination with a base, of outer walls mounted thereon, a pluralityT of core-walls spaced from the outer walls and havin their lower edges spaced from the base, an footstrips rigidly secured to the lower inner margins of the core-walls and extending the full length along the inner sides thereof, said footstrips being also spaced from the base and from each other leaving an open bottom to the core and furthermore having their lower edges Hush with the lower edges of the corewals carrying them.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CHARLES A. LANDON.

Witnesses H. C. MIELEY, MARION G. FOSTER. 

